The frequency of the wave is 0.714 H Z and the speed of the wave is 7 m/s.
Explanation:
To find the frequency of the wave,
From the given data, we can find the frequency and speed of the wave.
The drenching occurs at every 1.40 seconds
T = 1.40 seconds
To find frequency the formula used is
F = T⁻¹
= 1.4 ⁻¹
F = 0.714 HZ
To find speed, the formula used is
V = λ/ T
= [tex]\frac{9.8}{1.4}[/tex]
V = 7 m/s.
Thus, The frequency of the wave is 0.714 H Z and the speed of the wave is 7 m/s.